Geain-sepabatoe



1. NASH.

Grain Separator.

Patented Sept. 2 7, 1859.

[72 F672 in r:

N, PETZRS. PholwLKMgnpfm. Wlilingwn. D. C.

UNITED STATES PATENT OFFICE.

JEFFERSON NASH, OF JANESVILLE, \VISCONSIN, ASSIGNOR TO HIMSELF, ANDALONZO K. CUTTS, OF FULTON, WISCONSIN.

GRAIN-SEPARATOR.

Specification forming part of Letters Patent No. 25,608, dated September27, 1859; Reissued July To all whom it may concern:

Be it known that I, JEFFERSON NASH, of J anesville, in the county ofRock and State of l/Visconsin, have invented a new and ImprovedGrain-Separator; and I do hereby declare that the following is a full,clear, and exact description of the same, reference being had to theaccompanymg drawings, forming a part of .this specification, in which-Figure 1 represents a longitudinal vertical section of a grain separatorconstructed according to my invention. Fig. 2 is a horizontal section ofditto.

Similar letters of reference in both views refer to corresponding parts.

To enable those skilled in the art to fully understand, make and use myimproved grain separator I will proceed to describe its construction andoperation.

A represents a frame, which serves to support a fan blower, B, and theseveral sieves which will be hereinafter more fully explained. The fanblower receives its motion from some source of power from which motionis conveyed to a pulley, C, on the axle, D, of the fan blower, andsecured to the side of this pulley is an eccentric wrist pin, a, Whichconnects, by means of a rod, Z), with a vibrating lever, E, whichextends through the whole width of the machine and the fulcrum of whichis on a pivot, c.

The sieves, F, are arranged in a shoe, G, which is supported from hingedrods, 0, and which is provided with an apron, (Z, close under theopening in the hopper, H, so that the grain as it drops from the hopperis worked down to the sieves by the apron cl. The shoe connects with thelever, E, by means of a rod, 0, which extends from the lever to one armof an elbow crank, f, and the other arm of this crank connects with across brace, g, of the shoe by means of a rod, 7i, and if thus connectedthe motion of the shoe is in a transverse direction. The rod, it,however, may be disconnected from the elbow crank, and it can beconnected directly with the lever, E, and in this case the motion of theshoe is in a longitudinal direction. The lever, E, as well as the elbowcrank, f, is provided with a series of holes whereby the quantity ofmotion given to the shoe can be regulated for different kinds of grain.The sieves, F, are arranged in a common frame, one above the other, andthey are of uniform texture, and placed between each pair of full sizedsieves are the sectional sieves, i, which materially assist in cleaningand separating the grain, and they are secured to the shoe by means ofbut tons, or any other convenient manner.

Arranged under the shoe G, and supported by projections, and by a rod,K, is an additional sieve, H, in an inclined position, which connectswith the lever, E, by means of a rod, m, so that when the lever isagitated a reciprocating motion is communicated to the sieve, H, in alongitudinal direction, and the rod, K, is stepped on a lug, Z, which issecured to one of the cross-bars of the frame, A, in such a positionthat the rod, K, is in an inclined position, and that by the action ofthis rod the sieve, as it is moved in a longitudinal direction,receives, at the same time, a slight up and down motion, whichmaterially facilitates the operation of cleaning. This sieve is providedwith a throat, 0, through which the lighter parts of the chaff aredriven out by the action of the blast from the fan-blower.

This invention is of particular advantage for cleaning spring wheat,which is very difficult to clean with any other grain separator as nowconstructed, and it can be used equally well for all sorts of grain, andit is only necessary to regulate the throw of the shoe, G, and themotion of the sieve, H, by shifting the rods, 6 and m, to differentholes in the lever, E.

WVhat I claim as new and desire to secure by Letters Patent is Thearrangement and combination of the vibrating lever, E, the elbow crank,f, and the rods, 0 and h, whereby the motion of the shoe can be changedfrom a longitudinal to a transverse direction, and vice versa,substantially as herein described.

JEFFERSON NASH.

Witnesses L. S. FELLOWS, V. V. Fox.

